MTC20154

www.DataSheet4U.com MTC20154 INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Fully integrated AFE for ADSL Overall 12 bit resolution, 1.1MHz signal bandwidth 8.8 MS/s ADC 8.8 MS/s DAC THD: -60 dB @ full scale 1V full scale input Differential analog I/O Accurate continuous-time channel filtering 3rd & 4th order tunable continuous time LP Filters 64 pin TQFP package 350mW power consumption TQFP64 (10 x 10 1.4mm) ORDERING NUMBER: MTC10154TQ-C (Temp.: 0 to 70°C) intended to be used with the MTC20156/ MTC20147 DMT/ATM processors as part of the MTK20150/MTK20141 chipsets, but may also be used to support other xDSL signal processors. Applications ■ The MTC20154 provides programmable low pass filters for each of the two channels and automatic ADSL Front-end for all full rate and Lite gain control. A configuration pin allows the filters to standards DataSheet4U.com be switched from ATU-R mode to ATU-C mode. DESCRIPTION The pipeline ADC architecture provides 13 bit dynamic range and a signal bandwith of 1.1 MHz. The MTC20154 is the fifth generation Analog The device consumes only 0.35 Watt in full operaFront End (AFE) designed for DMT based ADSL tion and has a power down mode for standby. It is (Asynchronous Digital Subscriber Line) modems housed in a compact 64 pin thin plastic quad flat compliant with ANSI T1.413 category 2 standard. package. It includes one 12 bit DAC and one 13 bit ADC.It is DataShee Figure 1. Block Diagram T uning circuit I/V -...